Code Access Security Policy Tool. Modify security policy for the machine policy level, the user policy level, or the enterprise policy level.
Trust a single file:
Trust a folder or URL:
For the most common options, trusting a file or folder (Machine policy level) paste the path into the relevant box above and press calculate.
In most cases you should specify a specific version of caspol e.g. C:\WINDOWS\Microsoft.NET\Framework\v2.x.xxxxx\Caspol.exe
Code Access Security (CAS) has been deprecated across all versions of .NET Framework and .NET.
Recent versions of .NET do not honor CAS annotations and produce errors if CAS-related APIs are used. Developers should seek alternative means of accomplishing security tasks.
Starting with .NET Framework 4, Caspol.exe does not affect CAS policy unless the <legacyCasPolicy> element is set to true. Any settings shown or modified by CasPol.exe will only affect applications that opt in to using CAS policy.
If you run the Caspol.exe that was installed with version X of the runtime, the changes apply only to that version. Other side-by-side installations of the runtime, if any, are not affected. If you run Caspol.exe from the command line without being in a directory for a specific runtime version, the tool is executed from the first runtime version directory in the path (usually the most recent version installed).
When a user without administrative rights runs Caspol.exe, all options refer to the user level policy unless the -machine option is specified. When an administrator runs Caspol.exe, all options refer to the machine policy unless the –user option is specified.
For advanced usage - see the full syntax on MSDN - Code Access Security Policy Tool
“Change is the law of life. And those who look only to the past or the present are certain to miss the future” ~ John F. Kennedy
CasPol wrapper for PowerShell - Peter Kriegel/TechNet.
Code Access Security Policy GUI Utility - Brandon Potter.
SC - Service Control.